java - 关于构造函数的困惑

Question

Consider the following segment of code.

SomeClass someObject1 = new SomeClass("Computer Science");
SomeClass someObject2 = new SomeClass("Computer Science", "Rocks");
SomeClass someObject3 = new SomeClass("Computer", "Science", "Rocks");

Write complete constructors for each of these statements including the assignment of variables.

我不确定这个问题到底在寻找什么。有人可以帮我解决这个问题吗？

Answer 1

所以你的答案是

public SomeClass{

 String str1;
 String str2;
 String str3;

public SomeClass(String str1){
  this.str1=str1; 
}; 
public SomeClass(String str1,String str2){
this.str1=str1;
this.str2=str2;
}; 
public SomeClass(String str1,String str2,String str3){
this.str1=str1;
this.str2=str2;
this.str3=str3;
}; 

}